Hoist or lift.



' Patented Den. 4, I900. B. TUCKER.

HOIST 0B LIFT (Application filed Jam 9, 1900.,

(No Model.)

NITED STATES PATENT OFFICE.

BERNARD TUCKER, OF PHILADELPHIA, PENNSYLVANIA.

HOIST OR LIFT.

SPECIFICATION forming part Of Letters Patent No. 663,109, dated. December 4, 1900.

Applidation filed January 9, 1900. Serial No. 833. (No model.)

To ctZZ whont it may concern:

- Be it known that I, BERNARD TUCKER, of the city and county of Philadelphia, in the State of Pennsylvania, have invented an Improvement in Hoists or Lifts, of which the following is a specification.

My invention relates to hoists or lif-ts for raising and discharging grain, coal, or merchandise; and it consists of improvements which are fully set forth in the following specification and are shown in the accompanying drawings.

Much trouble is experienced with the lifts now in use in elevating and discharging coal, grain, or merchandise spread out over a large area, owing to the difficulty of moving or adjusting the lift over a wide horizontal area.

With non-adjustable or immovable lifts the material from points out of the field of action of the lift must be conveyed by additional means within range, which necessitates additional labor, delay, and expense. With movable or portable lifts,such as have heretofore been used, much time and labor are required for moving the lift from one place to another.

It is one of the objects of my invention to provide a lift having a maximum field or range of action with provision for ready adjustment, so that it may be easily and quickly adjusted within its field or range of action.

It is another object of my invention to ren der the lift portable, so that it may easily, quickly, and with little labor be moved from one position to another to suit the area of the merchandise to be hoisted.

In carrying out my invention I employ a pole for the hoisting-rope, which is supported in a more or less upright and adjustable position upon a universal joint, which enables the lifting-pole to be quickly and easily adjusted or moved within the range permitted by the length of the pole itself. By making the pole and its universal joint portable I am enabled to change it from one place to another with facility and rapidity.

In the drawings, Figure l is a side elevation of a lift or hoist embodying my invention. Fig. 2 is a plan view of the support and socket for the pole of the hoist. Figs. 3 and 4 are vertical sectional views of the same, taken, respectively, at right angles to one another. Fig. 5 shows detached details of the socket, and Fig. 6 is a detail perspective view of a fastening key.

The hoist consists of a pole A and a support B, by which the pole is supported in an adjustable and more or less upright position by a universal joint, and the usual hoisting rope or cable 0, passing over a pulley c on the pole and carrying the bucket, car, or object D to be lifted. When the pole has been adjusted, it is sustained in position by suitable guy-ropes E, of which any suitable number may be used and arranged to suit the conditions, as will be apparent to the rigger.

The hoisting rope or cable 0 is operated in any convenient manner, as by a winding-engine.

To provide the universal joint between the pole and its support, a ring or frame F, provided with trunnions f, is fitted on the bottom of the pole, with its trunnions fitting sockets e in a ring or frame G, also provided with trunnions g,fitting sockets b in the support B at right angles to the trunnionsf. This connection permits a universal movement in the pole A, so that it may be turned at any angle of elevation or in any direction covering the entire field within the radius of the pole.

To prevent the accidental disengagement of the parts of the universal joint and permit them to be readily put together or separated when desired, one of the sockets e in the ring g consists of a hole and the other of a notch, and a plate I, having a hole '6, is placed over the trunnion f of the notch g an secured to the ring G.

In practice the supports B may be fixed to the floor or deck, and a series of them may be employed, properly located for the space over which the hoist is to operate. When the hoist has been used at one support, it may be bodily lifted therefrom with its universal joint F G and inserted in another support in position to operate over a new area. If desired, the support may be moved also; but in practicee. g., in a coal-collier-I prefer to employ a series of fixed supports B so disposed over the boat that by moving the hoist from one to another the entire area of the boat can be covered.

To enable the pole and its ring F to be locked to the ring G, which is desirable when from the invention the pole is being removed from one support and applied to another, suitable means for locking the rings F and G together may be employede. 9., such as the key or Wedge K, Fig. 6, inserted between the rings F and G. (See dotted lines in Fig. 3.)

The details of construction which have been shown may be varied Without departing WhatI claim as new, and desire to secure by Letters Patent, is as follows:

1. In a hoist or lift, the combination of a stationary frame B provided with sockets b, an' upright pole, a frame pivoted to said upright pole on a horizontal axis and carrying trunnions g adapted to fit the sockets of the frameB and arranged at substantially right angles to the pivots of the upright pole,

whereby said upright pole and its frame are removably supported by said stationary frame and may be removed together therefrom, without the disconnection of parts.

2. In a hoist or lift, the combination of the pole A for the hoisting-rope, the ring F carried by the base of the pole and provided with the trunnionsf, and the ring G having sockets e for the .trunnionsf and trunnions g arranged at substantially right angles to the trunnionsf of the ring F substantially'as and for the purpose described.

3. In a hoist or lift, the combination of the pole A for the hoisting-rope, the ring F carfot the ring F, and the detachable lock between the rings F and G substantially as and for the purpose described.

In testimony of which invention I hereunto set my hand. I

BERNARD TUCKER. Witnesses:

ERNEST HOWARD HUNTER, JOSEPH W. KENWORTHY. 

